Roller.



UNITED STATES PATENT OFFICE.

ALBERT PETER KNAUBER AND HERMANN OSTVALD, OF MILWAUKEE,

' l W'ISCONSIN.

ROLLER.

SPECIFICATION forming part of LettersIatent No. 700,509, dated May 20, 1902.

Application inea september iaieoi'. sern no; 75.524. oro modem To a/ZZ whom it may concern,.-

v Be it known that we, ALBERT lEErEnlrL/iU-A BER and HERMANN OsTwALD, citizens ofthe- United States, residing at Milwaukee, inthe county of Milwaukee and State of Wisconsin,4 have invented new and useful Improvements in Rollers, of which the following is a specication.

Our invention relates to rollers especially adapted for roller-skates g and its primary ob*-l ject is to provide a roller of novel construction which will render the skates comparatively noiseless, thus overcoming a series of objections `to the hardened-wooden rollers heretofore commonlylused.

A further object of the'invention is to provide a rollerwith a yielding tire or tread-surface whichwill prevent slipping, and thus obviating the necessity of using chalk or rosin on the oors ofrollenskating rinks and avoid-' ing the dust whichthe sprinkling of chalkorv rosin creates.

A further object of the invention is to provide a roller comprisingdetachable sections between which the yielding tire is secured removably.

` be fully described hereinafter in connection.`

with the accompanyingdrawings, which form part of this specification, and its novel and.'

The construction of thev improvement will characteristic features will be'deiinedin th appended claims. w

In the drawings, Figure 1 is a side -elevation of a roller embodying the invention. Fig. 2 is a transverse section of thefsaine.

Fig. 3 is an elevation of the inner side ofone of the separable sections of the roller. AFig. 4 is a similar view of the other section.

Fig. 6 is a side elevation of the ,roller-tire. Fig. 7 is an edge view of the twoside sections of the roller connected with'the tire removed and Fig. 8 is a perspective view of a tool for applyingand removing the ring.

The reference-numerals 1 and 2'designate Fig;`v 5 is a plan of the securing-ring of the roller.

the sides of the roller, each comprising a metal disk having its edge projected inward Ito forman annular groove 3 and its periphery t beveled, as shown in Fig. 2.

l lThe section lis formed with a sleeve 5, confstitnting the bearingof the roller and adapted to extend through the section 2.

The inner projecting end 6 of the sleeve is externally screw-threaded .to receive a locking- V'ring 7 ,having internal screw-threads to t the end of the sleeve and diametrically opposite slots 8 to receive the ltool shown in Fig. 8.

The inner faces of bothgof the sections l 'and2v are formed with radiallugs 9, adapted ,jto enter corresponding radial recesses 10, vformed in the opposite( faces of'y the tire ll,

which is formed of rubberj'or other yielding material.

The rubber tire or treadof Vthe roller is formedwith annular iianges l2, fitting the "grooves 3 and having the recesses l0, above referred to, which prevent creeping ror rotary movement of the tire upomtheroller.

The sections l and 2 are'prevented from in- 'dependent rotary movement by means of lugs 13, projecting at diametrically opposite points It-will be apparent that the rubber tire is if rnnly:l clam ped between .the two sections l 'and 2 and is held against rotation except with the rollen-sections and, further,1that the tire may be readily renewed when und uly worn by.

removing'the ring 7 with `the wrench shown in,Fig.-8. This implement consists of a handle orvbody 14E and laterally-extending paralilel lugs l5', spaced apart to fit the slots in the 1. A rollericomprising separable sections 4each formed with an annular grooveonits in- .fnerfacef and one of saidisections"havinga threaded sleeve` e xtending into the other sec;

tion', lugs diametricallyl arrangedfon the said 'sleeve adap'tedto iit in corresponding recesses `on the sleeve 5 and tting'corresponding relcesseson the section2.

to fibsaid grooves, and an internally-hrezuled roller-sections from independent rot-ary movering LLingon thetybreaded end of the sleeve. ment. r

2. A roller comprising separable sections In testimony whereof We allix our signa- 5 each formed on its inner face with an annntures in presence of two Witnesses.

lar groove, andone of said sections having :L ALBERT PETER KNAUBER. threaded sleeve extending into the other see- HERMANN OSTWALI).

in ille opposiLe section, a yielding tire flanged with the roller, and means for preventing the tion,a rubber tire formed with annular flanges Witnesses: fitting seid grooves, radial lugs on the see- XVILLIAM F. BOLL, 1o tions to prevent movement of the tire except, ROBERT G. VENDLAND. 

